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Keywords from Image Description:
Berzy. . R. Berthel en ballon captif Fonds Berthel Fi. Commons Batchuploading BERTHEL Raoul VERRE Photographie stro Domaine public Berzy Berthel en ballon captif Berzy BerthelenballoncapondsBerthelFi AERONEFMETEOROLOGIEMILITAIREGUERRE cm FRACFi Raoul Berthel en ballon captif BerzyleSec Aisne er novembre Guerre Opration